Faults in Lubrication System (General)
Low Oil Pressure.
|
Causes
|
Remedy
|
|
Diluted or thin oil
|
Change oil
|
|
Oil pump strainer clogged
|
Clean strainer
|
|
Worn pump gear
|
Overhaul pump
|
|
Main and big end bearings badly worn
|
Replace bearings
|
|
Weak relief valve spring
|
Change the spring
|
|
Leak in the system
|
Trace and rectify
|
|
Engine over heating
|
Trace and rectify
|
|
Pressure gauge u/s
|
Replace
|
Excessive Oil Consumption
|
Causes
|
Remedy
|
|
External leaks
|
Trace and rectify
|
|
Burning oil in the combustion chamber
|
Check valve
stem clearance, Check piston rings,
change if worn out
|
|
Oil level too high
|
Maintain oil at correct
level
|
|
Poor quality
or improper viscosity of lubricating oil
|
Use correct grade of lubricating oil
|
High Oil Pressure
|
Causes
|
Remedy
|
|
Oil too thick (wrong
grade)
|
Fill correct grade
|
|
Chocked passage
of relief valve
|
Rectify
|
|
Relief valve pressure set too high
|
Set Correctly
|
|
Pressure gauge
Faulty
|
Replace with new one
|
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